Johnathan Au, MD, MPH
NPI 1518463231 · Diagnostic Radiology Physician · Evanston, IL
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Johnathan Au, MD, MPH is a Diagnostic Radiology Physician provider in Evanston, IL (NPI 1518463231).
Provider details
- NPI number
- 1518463231
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Male
- Sole proprietor
- No
- License
- 83034-20 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
489 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 97 | $8 |
| X-Ray of Chest, 2 Views71046 | 55 | $17 |
| Ct Scan Head Or Brain Without Contrast70450 | 44 | $39 |
| X-Ray of Chest, 2 Views71046 | 34 | $10 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 33 | $17 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 31 | $86 |
| X-Ray of Hip, 2-3 Views |
Practice location
Mailing address
Additional practice locations (1)
- 925 Seneca StMail Sop: H8-GmeSeattle, WA 98101Phone: (206) 583-6079
Registry dates
- Enumerated
- 2018-04-02
- Last updated
- 2024-04-22
- Certified
- 2024-04-22
Frequently asked questions
- What is Johnathan Au's NPI number?
- Johnathan Au's National Provider Identifier (NPI) is 1518463231, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Johnathan Au's specialty?
- Johnathan Au is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Johnathan Au located?
- Johnathan Au's practice location on file with NPPES is 2650 Ridge Ave., Evanston, IL 60201.
- What is Johnathan Au's phone number?
- The practice phone number listed in the NPPES registry for Johnathan Au is (847) 570-2486.
- Does Johnathan Au accept Medicare?
- Johnathan Au is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Johnathan Au's NPI active?
- Yes — Johnathan Au's NPI (1518463231) is active in the NPPES registry as of the last update on 2024-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.